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Analysis
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max time kernel
1482s -
max time network
1495s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
13/03/2024, 15:27
Static task
static1
Behavioral task
behavioral1
Sample
KFC changed me (mp3cutnet)-drums.mp3
Resource
win11-20240221-en
General
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Target
KFC changed me (mp3cutnet)-drums.mp3
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Size
2.3MB
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MD5
47125c11b93a35a86e4d1b4c1fbade51
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SHA1
1992ab3ac508fa64082b5bf4d6d03be9ce453f4c
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SHA256
2874c92f30d3fef12c78ed8ac17de5d4e29278f5f60bb6ac66e9d5b622e0ea76
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SHA512
4adca0ef917f1a62bdac803719cb79f1b0f8cefe7f315dd772dd80156a61c9f8560ba1875149fe2e8e1e6695f8536349bf73639feca6684eacc934291d20ca1c
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SSDEEP
49152:K7+hBSSBYXS/yuVFsrM5+OEnc5wqdTYht+seOud29ZvWZL2w:h/NBYXSOM5Inc5ZKwOudmw
Malware Config
Signatures
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Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\E: unregmp2.exe File opened (read-only) \??\I: unregmp2.exe File opened (read-only) \??\U: unregmp2.exe File opened (read-only) \??\V: unregmp2.exe File opened (read-only) \??\X: unregmp2.exe File opened (read-only) \??\Y: unregmp2.exe File opened (read-only) \??\A: unregmp2.exe File opened (read-only) \??\H: unregmp2.exe File opened (read-only) \??\J: unregmp2.exe File opened (read-only) \??\L: unregmp2.exe File opened (read-only) \??\N: unregmp2.exe File opened (read-only) \??\W: unregmp2.exe File opened (read-only) \??\Z: unregmp2.exe File opened (read-only) \??\G: unregmp2.exe File opened (read-only) \??\Q: unregmp2.exe File opened (read-only) \??\K: unregmp2.exe File opened (read-only) \??\M: unregmp2.exe File opened (read-only) \??\O: unregmp2.exe File opened (read-only) \??\P: unregmp2.exe File opened (read-only) \??\R: unregmp2.exe File opened (read-only) \??\S: unregmp2.exe File opened (read-only) \??\T: unregmp2.exe File opened (read-only) \??\B: unregmp2.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 1152 unregmp2.exe Token: SeCreatePagefilePrivilege 1152 unregmp2.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2756 wrote to memory of 3992 2756 wmplayer.exe 80 PID 2756 wrote to memory of 3992 2756 wmplayer.exe 80 PID 2756 wrote to memory of 3992 2756 wmplayer.exe 80 PID 2756 wrote to memory of 4908 2756 wmplayer.exe 81 PID 2756 wrote to memory of 4908 2756 wmplayer.exe 81 PID 2756 wrote to memory of 4908 2756 wmplayer.exe 81 PID 4908 wrote to memory of 1152 4908 unregmp2.exe 82 PID 4908 wrote to memory of 1152 4908 unregmp2.exe 82
Processes
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C:\Program Files (x86)\Windows Media Player\wmplayer.exe"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\KFC changed me (mp3cutnet)-drums.mp3"1⤵
- Suspicious use of WriteProcessMemory
PID:2756 -
C:\Program Files (x86)\Windows Media Player\setup_wm.exe"C:\Program Files (x86)\Windows Media Player\setup_wm.exe" /RunOnce:"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\KFC changed me (mp3cutnet)-drums.mp3"2⤵PID:3992
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C:\Windows\SysWOW64\unregmp2.exe"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon2⤵
- Suspicious use of WriteProcessMemory
PID:4908 -
C:\Windows\system32\unregmp2.exe"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:1152
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
256KB
MD5aea19723ba05cc4c01e58b17e44358be
SHA12bf99d6ac66affcb34f4562341ba13c7ab2e1bdd
SHA256b66153194c41c7d59fd7fe81a9f025faffb9c1e69993c374355315147dd212e1
SHA512ce2921178063e7e5b0e699338cee880a287eb5ec04f24e1527ef426a5c7f953c384f8b240ae4f180ac0b64d1171093f9fc88bf42fe7ab311496f4815b99f960d
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Filesize
9KB
MD57050d5ae8acfbe560fa11073fef8185d
SHA15bc38e77ff06785fe0aec5a345c4ccd15752560e
SHA256cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b
SHA512a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b
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Filesize
1KB
MD5025c93118b1af2c6b9405edbed054cd2
SHA1ad021483d028d98dc2469c124993c9b765152356
SHA256da958c6c67d4ffa728ce94eb2aa961d1c78b60dde88319e7d7f032c526c045c9
SHA5124db7d5f48cd18956cd76ac1ee7fdb67b36fc49a843326a5413e436e837e561cdb05f6b3de3fb814db6d092554b23a8a2f67e3288c5e86ebfeb4950ee1902490e